Though he started late, Mr.Guo played the piano as well as, if________, Miss Liu.
A:not better than
B:not better
C:no better than
D:no better
如图所示,某人站在地上使用滑轮组提升重物,请你在答题卡上画出他使用滑轮组最省力的绕法.
A) 根据句意和汉语提示,写出空白处所缺单词的正确形式。